MC2: 10/03/12 Page
5
of
90
GF-115-H
OMM-0083_0B
Modulex MLX Series Gas Fired Boiler System
Operation and Maintenance Manual
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
•
Ph: 800-526-0288
9.3.1
Unit Disassembly for a Fireside Inspection ........................................................ 51
9.3.2
Removing The Burner Modules .......................................................................... 55
9.3.3
Maintenance of Burner Modules and Combustion Chamber .............................. 56
9.3.4
Reassembly After Burner Mainentance .............................................................. 57
9.3.5
Testing the Flame Detection Circuitry ................................................................ 57
9.3.6
Disassembly, Inspection, and Maintenance for the Flue Collector ..................... 57
9.4
Burner Section Replacement Instructions ...................................................................... 59
9.4.1
Disassembly For Burner Section Replacement ................................................... 60
9.4.2
Replacement of Burner Sections ......................................................................... 61
9.4.3
Replacing the Condensate Tray Top Gasket ....................................................... 62
9.4.4
Re-Assembly After Burner Section Replacement ............................................... 64
9.5
Final Testing and Return To Service.............................................................................. 64
CHAPTER 10: TROUBLE SHOOTING GUIDE ................................................................... 65
10.1
Introduction ................................................................................................................ 65
CHAPTER 11: TEMPERATURE SENSOR RESISTANCE CHART.................................. 77
CHAPTER 12: MODULEX PARTS DRAWING AND LIST ................................................ 78
CHAPTER 13: BOILER WATER QUALITY AND MAINTENANCE ............................... 83
13.1
Modulex Boiler Water Chemistry .............................................................................. 84
13.1.1
Reaction of Metals to Water Chemistry .......................................................... 84
13.1.2
Scale and Corrosion ......................................................................................... 84
13.1.3
Make-up or Feed Water Quality ...................................................................... 84
13.1.4
Treating Water to Prevent Freezing................................................................. 84
13.1.5
Water Treatment Certification ......................................................................... 85
13.2
Testing and Maintenance of Water Quality ................................................................ 85
13.3
System Flushing, Treatment, and Cleansing .............................................................. 86
13.4
Water Quality Maintenance and Boiler Warranty ...................................................... 87
13.5
Water Treatment Certification .................................................................................... 87
13.6
Water Treatment Analysis and Scheduling ................................................................ 87
13.7
Hydronic Water Testing and Treatment Resources ................................................... 88
